#app{display:flex;min-height:100vh}
#sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:98}
#sidebar{position:fixed;top:0;left:0;width:260px;height:100vh;background:var(--sb-bg);z-index:99;display:flex;flex-direction:column;transition:transform .25s}
.sb-brand{display:flex;align-items:center;gap:12px;padding:20px 18px 16px;border-bottom:1px solid rgba(255,255,255,.06)}
.brand-bars{display:flex;gap:3px;width:24px;height:24px;align-items:center}
.brand-bars .bb{width:4px;border-radius:2px;background:var(--primary)}
.brand-bars .b1{height:14px}.brand-bars .b2{height:20px}.brand-bars .b3{height:10px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-t{font-size:1.05rem;font-weight:700;color:#fff;letter-spacing:1px}
.brand-st{font-size:.65rem;color:var(--sb-text);font-weight:300}
.sb-nav{flex:1;overflow-y:auto;padding:12px 12px}
.sb-section{font-size:.65rem;text-transform:uppercase;letter-spacing:1px;color:var(--sb-text);padding:16px 12px 6px;opacity:.5}
.sb-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--sb-text);font-size:.82rem;transition:all .15s;margin-bottom:2px}
.sb-item:hover{background:var(--sb-hover);color:#fff}
.sb-item.active{background:var(--sb-active);color:var(--sb-text-active);font-weight:500}
.sbi-icon{font-size:1.1rem;width:24px;text-align:center}
.sb-footer{border-top:1px solid rgba(255,255,255,.06);padding:8px}

#main{flex:1;margin-left:260px;min-height:100vh;display:flex;flex-direction:column}
#topbar{height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.tb-left{display:flex;align-items:center;gap:14px}
.tb-menu-btn{display:none;font-size:1.3rem;color:var(--text)}
.tb-avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.85rem;color:#fff;flex-shrink:0}
.tb-avatar.green{background:var(--success)}
.tb-info{display:flex;flex-direction:column}
.tb-school{font-size:.85rem;font-weight:600}
.tb-date{font-size:.7rem;color:var(--text-muted)}
.tb-tabs{display:flex;gap:4px;margin-left:20px;background:var(--bg);border-radius:var(--radius-sm);padding:3px}
.tb-tab{padding:5px 16px;border-radius:5px;font-size:.78rem;font-weight:500;color:var(--text-muted);cursor:pointer;transition:all .15s}
.tb-tab.active{background:#fff;color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.1)}
.tb-tab:hover:not(.active){color:var(--text)}
.tb-right{display:flex;align-items:center;gap:8px}
.tb-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-size:1.1rem;transition:background .15s}
.tb-btn:hover{background:var(--bg)}

.page-container{flex:1;padding:24px;overflow-y:auto;max-width:1200px;margin:0 auto;width:100%}
.page-section{display:none}
.page-section.active{display:block}
.page-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:24px;gap:16px}
.page-title{font-size:var(--font-size-xl);font-weight:700;color:var(--text)}
.page-subtitle{font-size:var(--font-size-sm);color:var(--text-muted);margin-top:2px}
.page-actions{display:flex;flex-shrink:0}

/* Dashboard */
.dash-container{display:grid;grid-template-columns:1fr 320px;gap:24px}
.dash-main{min-width:0}
.dash-header{background:linear-gradient(135deg,var(--primary),#1D4ED8);border-radius:var(--radius);padding:28px 32px;color:#fff;margin-bottom:24px}
.dash-header h2{font-size:1.4rem;font-weight:700;margin-bottom:4px}
.dash-header p{opacity:.85;font-size:var(--font-size)}
.dash-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:24px}
.stat-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.stat-card .stat-icon{font-size:1.8rem;margin-bottom:8px}
.stat-card .stat-value{font-size:1.6rem;font-weight:700;color:var(--text)}
.stat-card .stat-label{font-size:.72rem;color:var(--text-muted)}
.stat-card .stat-detail{font-size:.75rem;color:var(--text-muted);margin-top:2px}
.dash-scores{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-bottom:24px}
.score-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);border-top:3px solid #ddd}
.score-card .sc-hdr{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.score-card .sc-icon{font-size:1.5rem}
.score-card .sc-name{font-weight:600;font-size:var(--font-size)}
.score-card .sc-pts{font-size:1.5rem;font-weight:700}
.score-card .sc-cats{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.sc-cat{font-size:.7rem;padding:2px 8px;border-radius:10px;background:var(--bg);color:var(--text-muted)}
.dash-live>div{padding:16px 20px}
.dash-schedule>div{padding:16px 20px}
.card-hdr{font-size:.85rem;font-weight:600;margin-bottom:12px;display:flex;align-items:center;justify-content:space-between}
.sched-mini{display:flex;flex-direction:column;gap:8px}
.sched-mini-item{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--bg);border-radius:var(--radius-sm)}
.sched-mini-item .smi-time{font-size:.7rem;color:var(--text-muted);min-width:50px}
.sched-mini-item .smi-info{flex:1;font-size:.78rem;font-weight:500}
.sched-mini-item .smi-status{font-size:.65rem;padding:2px 8px;border-radius:10px;background:#E2E8F0}

/* Activity */
.act-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.act-card-hdr{padding:14px 18px;font-weight:600;font-size:.85rem;border-bottom:1px solid var(--border)}
.act-list{max-height:400px;overflow-y:auto}
.act-item{display:flex;align-items:flex-start;gap:10px;padding:10px 18px;border-bottom:1px solid #F1F5F9;font-size:.78rem}
.act-item:last-child{border-bottom:none}
.act-item .act-icon{font-size:1rem;margin-top:1px}
.act-item .act-text{flex:1;color:var(--text)}
.act-item .act-time{font-size:.65rem;color:var(--text-muted)}
.leaderboard-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.leaderboard-header{padding:14px 18px;font-weight:600;font-size:.85rem;border-bottom:1px solid var(--border)}
.leaderboard-list{padding:8px 12px}
.lb-item{display:flex;align-items:center;gap:10px;padding:8px 6px;border-bottom:1px solid #F1F5F9}
.lb-item:last-child{border-bottom:none}
.lb-rank{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;background:var(--bg);flex-shrink:0}
.lb-rank.r1{background:#FEF3C7;color:#D97706}
.lb-rank.r2{background:#E5E7EB;color:#6B7280}
.lb-rank.r3{background:#FDE68A;color:#B45309}
.lb-color{width:12px;height:12px;border-radius:50%;flex-shrink:0}
.lb-name{flex:1;font-size:.8rem;font-weight:500}
.lb-score{font-size:.9rem;font-weight:700}

/* Bracket */
.bracket-section{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.competition-tabs{display:flex;gap:0;border-bottom:1px solid var(--border);overflow-x:auto}
.comp-tab{padding:12px 20px;font-size:.8rem;font-weight:500;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent;transition:all .15s;white-space:nowrap}
.comp-tab.active{color:var(--primary);border-bottom-color:var(--primary)}
.comp-tab:hover:not(.active){color:var(--text)}
.bracket-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}
.bracket-header h3{font-size:1rem}
.bracket-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:20px}
.bracket-round{background:var(--bg);border-radius:var(--radius-sm);padding:16px}
.bracket-round-hdr{font-size:.75rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;margin-bottom:12px}
.bracket-match{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;margin-bottom:8px}
.bracket-match-status{font-size:.65rem;color:var(--text-muted);margin-bottom:4px}
.bracket-team{display:flex;align-items:center;justify-content:space-between;padding:4px 0;font-size:.8rem}
.bracket-team .bt-name{display:flex;align-items:center;gap:8px}
.bracket-team .bt-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.bracket-team .bt-score{font-weight:700;font-size:.9rem}
.bracket-team.winner{font-weight:600}

/* Schedule list */
.sched-list{display:flex;flex-direction:column;gap:8px}
.sched-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#fff;border-radius:var(--radius-sm);box-shadow:var(--shadow);border-left:3px solid var(--border)}
.sched-item .sched-icon{font-size:1.2rem}
.sched-item .sched-info{flex:1;min-width:0}
.sched-item .sched-title{font-size:.82rem;font-weight:500}
.sched-item .sched-meta{font-size:.7rem;color:var(--text-muted)}
.sched-item .sched-status{padding:2px 10px;border-radius:10px;font-size:.65rem;font-weight:500}
.sched-status.upcoming{background:#EFF6FF;color:var(--primary)}
.sched-status.live{background:#FEF2F2;color:var(--danger)}
.sched-status.completed{background:#F0FDF4;color:#16A34A}

/* Sports grid */
.sports-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.sport-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.sport-card-hdr{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--border)}
.sport-card-hdr .sp-icon{font-size:2rem}
.sport-card-hdr .sp-name{font-weight:600;font-size:1rem}
.sport-card-body{padding:12px 18px}
.sport-card-body .sp-gender{display:flex;align-items:center;justify-content:space-between;padding:6px 0;font-size:.8rem;border-bottom:1px solid #F1F5F9}
.sport-card-body .sp-gender:last-child{border-bottom:none}
.sp-gender .sp-gender-tag{padding:1px 8px;border-radius:8px;font-size:.7rem;background:var(--bg);font-weight:500}
.sp-gender .sp-gender-name{font-weight:500}
.admin-edit-icon{padding:4px;cursor:pointer;border-radius:4px;transition:background .15s}
.admin-edit-icon:hover{background:var(--bg);color:var(--primary)}

/* Teams grid */
.teams-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.team-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;border-top:4px solid #ddd}
.team-card-hdr{display:flex;align-items:center;gap:12px;padding:18px 18px;border-bottom:1px solid var(--border)}
.team-card-hdr .tc-icon{font-size:2rem}
.team-card-hdr .tc-name{font-weight:700;font-size:1rem}
.team-card-body{padding:16px 18px}
.team-stat{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid #F1F5F9;font-size:.82rem}
.team-stat:last-child{border-bottom:none}
.team-stat .ts-label{color:var(--text-muted)}
.team-stat .ts-value{font-weight:600}

/* Reports grid */
.reports-grid{display:grid;grid-template-columns:1fr;gap:20px}
.report-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.report-card-hdr{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--border)}
.report-card-hdr .rp-icon{font-size:1.5rem}
.report-card-hdr .rp-title{font-weight:600;font-size:.9rem}
.report-card-body{padding:16px 20px;overflow-x:auto}
.report-table{width:100%;border-collapse:collapse;font-size:.8rem}
.report-table th{padding:8px 12px;text-align:left;font-weight:600;background:var(--bg);border-bottom:2px solid var(--border)}
.report-table td{padding:8px 12px;border-bottom:1px solid #F1F5F9}
.report-table tr:last-child td{border-bottom:none}
.report-table .rank-medal{font-size:1rem}
.report-table .rt-total{font-weight:700}

/* Tabs inside pages */
.sub-tabs{display:flex;gap:0;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-bottom:20px;flex-wrap:wrap}
.sub-tab{padding:10px 20px;font-size:.8rem;font-weight:500;color:var(--text-muted);cursor:pointer;transition:all .15s;border-bottom:2px solid transparent;position:relative}
.sub-tab.active{color:var(--primary);border-bottom-color:var(--primary)}
.sub-tab:hover:not(.active){color:var(--text);background:var(--bg)}

@media(max-width:900px){
  #sidebar{transform:translateX(-100%)}
  #sidebar.open{transform:translateX(0)}
  #sidebar-overlay.open{display:block}
  #main{margin-left:0}
  .tb-menu-btn{display:block}
  .dash-container{grid-template-columns:1fr}
  .dash-stats{grid-template-columns:repeat(2,1fr)}
  .dash-scores{grid-template-columns:1fr}
  .bracket-grid{grid-template-columns:1fr}
}
@media(max-width:600px){
  .page-container{padding:16px}
  .dash-stats{grid-template-columns:1fr}
  .tb-tabs{display:none}
}